if (speed = 0){into
if (speed == 0){.
= is an assignment. == a compairison.
]]>I am trying to build a remote controlled car using an arduino nano. HC-05, sg90 servo, l298n motor driver and a simple BO motor. I will attach the code at the end. Here's my issue:
for the life of me, i cannot get any of the "if" statements to work. i tried to check if the pins are outputting anything using LEDs, and they're not.
i tried to test it by simplifying the code(again, with LEDs) . i first only kept the digital writes, it works. then i tried only the analogwrite, that works too. but when i put it all together, it doesnt work. i initially had the digitalwrite and analogwrite within the "if" conditions, then i moved it out as part of my trial to fix it. the "lead1" and "lead2" chars were also part of that modification. initally it was a straight high/low in the digital write.
the servo works flawlessly through all this.
PS: I'm unable to work the text sprintf too, but its secondary. I'd appreciate help with that too, but i can do without it. i did simila debug attempts with this too.
#define REMOTEXY_MODE__HARDSERIAL
#include <RemoteXY.h>
// RemoteXY connection settings
#define REMOTEXY_SERIAL Serial
#define REMOTEXY_SERIAL_SPEED 9600
// RemoteXY configurate
#pragma pack(push, 1)
uint8_t RemoteXY_CONF[] = // 61 bytes
{ 255,2,0,51,0,54,0,16,31,0,4,176,42,29,49,5,2,26,4,48,
19,10,5,45,2,26,129,0,3,30,14,5,17,83,112,101,101,100,0,129,
0,59,37,15,6,17,83,116,101,101,114,0,67,4,31,17,61,5,2,26,
51 };
// this structure defines all the variables and events of your control interface
struct {
// input variables
int8_t steer; // =-100..100 slider position
int8_t speed; // =-100..100 slider position
// output variables
char monitor[51]; // string UTF8 end zero
// other variable
uint8_t connect_flag; // =1 if wire connected, else =0
} RemoteXY;
#pragma pack(pop)
/////////////////////////////////////////////
// END RemoteXY include //
/////////////////////////////////////////////
#include <Servo.h>
const int pedal = 6; //motor PWM
const int motora = 7; // motor direction
const int motorb = 8; // motor direction
const int servopin = 5;
Servo servo1;
int move;
char lead1;
char lead2;
void setup()
{
RemoteXY_Init ();
pinMode(motora, OUTPUT);
pinMode(motorb, OUTPUT);
pinMode(pedal, OUTPUT);
servo1.attach(servopin);
// TODO you setup code
}
void loop()
{
RemoteXY_Handler ();
int steer = RemoteXY.steer;
int speed = RemoteXY.speed;
int servoPosition = map(steer, -100, 100, 0, 180);
servo1.write(servoPosition);
if (speed = 0){
lead1 = LOW;
lead2 = LOW;
sprintf (RemoteXY.monitor, "Brake..");
}
else if (speed > 0){
lead1 = HIGH;
lead2 = LOW;
move = map(speed, 0, 100, 0, 255);
}
else if (speed < 0){
lead2 = HIGH;
lead1 = LOW;
move = map(speed, 0, 100, 0, 255);
}
digitalWrite(motora, lead1);
digitalWrite(motorb, lead2);
analogWrite(pedal, move);
sprintf (RemoteXY.monitor, move);
// TODO you loop code
// use the RemoteXY structure for data transfer
// do not call delay()
}